Réponse de l'image mystère : il s'agit de la Guyane française photographiée par le satellite #Sentinel1 du programme #Copernicus.
Les couleurs proviennent de la combinaison de deux polarisations de l'image radar, auxquelles une couleur a été attribuée et convertie en un seul composite.
Plus d'infos : https://www.flickr.com/photos/europeanspaceagency/54474983119/in/feed-37440125-1745568719-1-72157721761649268

EO-Tools 2025.4.0 is out!

New in this release:
- Support for Sentinel-1C products!
- H-Alpha dual-pol decomposition from SLCs

Dive in: https://eo-tools.readthedocs.io
Code: https://github.com/odhondt/eo_tools

On 27 January 2025, Storm Herminia struck parts of Spain, Portugal, France, the UK, and Ireland.

This image, by #Sentinel1, shows the flooded areas south and east of Rennes.

Learn more:
https://www.copernicus.eu/en/media/image-day-gallery/storm-herminia-impacts-western-france
---
https://nitter.privacydev.net/CopernicusEU/status/1884548445681422589#m

Use of Sentinel-1 satellite to assess landscape changes due to the Palisades Fire (via NASA). #PalisadesFire #RemoteImaging #Wildfires #Sentinel1

Le satellite #Sentinel1 C a été lancé le 5 novembre pour renforcer le programme européen Copernicus. Moins d'une semaine après, voici les premières images acquises par son radar : le Svalbarg, Amsterdam et la région du Flevoland, et Bruxelles.
Via ESA

Retour en vol réussi pour #VegaC ce jeudi soir.
Le vol #VV25 a placé sur orbite héliosynchrone à 700 km d'altitude le satellite d'observation radar #Sentinel1-C de l'ESA pour le programme Copernicus

Soir de lancement
#VegaC #VV25
Satellite d'observation radar #Sentinel1-C de l'ESA
21h20 UTC
Centre spatial Guyanais, France
ESA-CNES-ARIANESPACE / S-Martin
Arianespace : https://www.youtube.com/live/4XVo-c9E9LQ - ESA : esawebtv.esa.int

le lancement #VegaC #VV25 avec #Sentinel1-C est reporté de 24 heures suite à un souci lors du retrait du portique mobile protégeant le lanceur des intempéries guyanaises.
ESA, le portique autour du lanceur

Soir de lancement
#VegaC #VV25
Satellite d'observation radar #Sentinel1-C de l'ESA
21h20 UTC
Centre spatial Guyanais, France
ESA
Arianespace : https://www.youtube.com/live/4XVo-c9E9LQ - ESA : esawebtv.esa.int

Le composite supérieur (satellite #Sentinel1-C + coiffe) a été installé sur le haut du lanceur #VegaC.
Décollage prévu ce 4 décembre à 21h20 UTC
CNES/ESA/Arianespace/Optique Vidéo CSG/JM Guillon

Prolonged northerly winds have created ideal conditions for sea ice between #Iceland and #Greenland

This is a 2-month series of #Sentinel1 extra wide swath images showing drift ice forming and extending its claws towards the #Westfjords

GIF made in a few minutes with #Copernicus browser

RT by @CopernicusEU: #Sentinel1C is launching soon!

#DYK that #Sentinel1 observations enable safe Arctic navigation

We integrate these observations into our products to estimate iceberg positions, which supports maritime safety

#Dataviz showing iceberg points estimated on 13 Nov

[2024-11-26 11:34 UTC]

RT by @CopernicusEU: Our @CopernicusEMS gathers the data from our #Sentinel1 @CopernicusEU satellites into the Global Flood Monitoring tool.

It helps in:
Prevention
Preparedness
Response
Recovery activities.

The image depicts a devastating flooding in Pakistan, which took place in 2022.

[2024-11-25 10:38 UTC]

A un peu plus d'une semaine du décollage (prévu le 3 décembre), le satellite #Sentinel1 C a été placé sous sa coiffe de protection.
Bientôt il ira rejoindre le lanceur #Vega #VV25 sur le pas de tir.
ESA – M. Pédoussaut

RT by @CopernicusEU: Several media opportunities for journalists interested in the launch of @CopernicusEU #Sentinel1 C aboard #VV25 Vega-C:

27 November:
14:00-14:45 CET - French Q&A session
15:00-16:00 CET - English briefing
29 November: French, German, Italian and Spanish briefings
3 December: launch event at @esaoperations with experts available for interviews.
https://www.esa.int/Newsroom/Press_Releases/Media_invitation_Sentinel-1C_pre-launch_media_briefings

[2024-11-22 13:30 UTC]

RT by @CopernicusEU: Another milestone on #Sentinel1 C @CopernicusEU path to launch!

Fueling phase was successfully completed yesterday in Kourou, in Europe’s Spaceport in French Guiana!

Save the date for the launch:
3 December
10:20 p.m. CEST

[2024-11-15 11:24 UTC]

L'énorme quantité de sédiments déversés dans la mer Méditerranée par les rivières de la région de Valence est clairement visible sur cette image acquise par le satellite #Sentinel3 le 30 octobre.
Cette seconde image prise par le satellite #Sentinel1 d'hier montre en tons bleus les zones inondées au sud de Valence.
CopernicusEU

Le service de gestion des urgences Copernicus a été activé pour fournir des évaluations de la situation de l'étendue des inondations et des dommages à Valence.

New NASA OPERA project product provides detailed maps of water in and around landmasses, based on analysis of Copernicus Sentinel-1 radar images. Future version will use NASA-ISRO SAR (NISAR) radar images.
https://www.earthdata.nasa.gov/news/new-product-provides-detailed-maps-water-around-landmasses
#NASA #NASA_JPL #floods #SurfaceWater #Copernicus #Sentinel1#radar

RT by @CopernicusEU: Call for media:
Media representatives are invited to express their interest in attending the @CopernicusEU #Sentinel1 C launch media event at Europe's Spaceport in Kourou, French Guiana.

Info and deadlines: https://www.esa.int/Newsroom/Press_Releases/Call_for_interest_Copernicus_Sentinel-1C_launch_media_event_at_Europe_s_Spaceport

[2024-10-17 13:32 UTC]

To follow up on my previous post about InSAR coherence, this is an example showing how coherence changes when built-up areas replace vegetation and how it compares to optical. All images have been processed with EO-Tools ;)
(hover on image to see the animation)